Advisory group Climate Tasmania is seeking support from both sides of the government for its action plan, released on Wednesday, which will see stronger and more definitive actions to mitigate climate change.

Launceston-based member David Hamilton said there had been a number of different climate change plans tabled in Parliament in recent years but none of them had definitive actions to transition business and communities away from carbon-producing fossil fuels.

"Carbon neutral should not be the only end goal," Mr Hamilton said.

"Eventually we will need to get off fossil fuels entirely."  

Mr Hamilton said the recent cabinet reshuffle had given the group the impetus to take action on its plan, which it had been working on for the past few years, and call on all politicians for support.

He said all the different parliamentary climate change plans were good but none had continuity.

"It takes courage to act on fossil fuels," he said.

Climate change disruption may be inevitable but he said Climate Tasmania didn't want to sound dire.

"We don't want people to give up but we want them to understand the urgency," he said.

"We need a process to get off fossil fuels, start with the biggest user and make any policy about fossil fuels, not emissions targets"

A central part of the plan is the establishment of an independent energy transition authority, which could oversee and assist in the management of energy transition plans for businesses and communities.

Climate Tasmania has released proposals for a major revision of the state's existing 2008 Climate Change (state action) Act, which it has sent to party leaders and MPs to begin discussions.

Climate Tasmania spokeswoman Mel Fitzpatrick said Tasmania was in a great position to be a climate leader and strengthen its economy through well-managed action.

"Over the years we have seen numerous climate policy documents produced by successive Tasmanian Governments on both sides of the political divide jettisoned by new ministers and governments, severely hindering progress.

"It's time the whole Parliament came together to develop a comprehensive, detailed, inclusive, Climate Change Act which confronts and deals with the threat of climate breakdown while protecting the Tasmanian community from climate disruption," Dr Fitzpatrick said.

She said Climate Tasmania had discussed this with members from all parties and both houses of Parliament, and continued to look for opportunities to put forward its ideas for this important legislation to politicians and to the wider Tasmanian community.

"We acknowledge the reasonable concerns of many Tasmanians about how climate action might affect their income and the cost of living," Dr Fitzpatrick said.

"Equity and protection of the vulnerable are essential principles in this 'just transition' away from coal, oil and gas. With many Tasmanians struggling, we are concerned that climate disruption could make things worse for them. Our leaders need to engage with the whole community on this."